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116
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TRANSCI
2008
80views more  TRANSCI 2008»
15 years 3 months ago
An Efficient Method to Compute Traffic Assignment Problems with Elastic Demands
The traffic assignment problem with elastic demands can be formulated as an optimization problem, whose objective is sum of a congestion function and a disutility function. We pro...
Frédéric Babonneau, Jean-Philippe Vi...
117
Voted
ANOR
2002
100views more  ANOR 2002»
15 years 3 months ago
A Limited-Memory Multipoint Symmetric Secant Method for Bound Constrained Optimization
A new algorithm for solving smooth large-scale minimization problems with bound constraints is introduced. The way of dealing with active constraints is similar to the one used in...
Oleg P. Burdakov, José Mario Martíne...
MOC
2002
107views more  MOC 2002»
15 years 3 months ago
Combined Hermite spectral-finite difference method for the Fokker-Planck equation
The convergence of a class of combined spectral-finite difference methods using Hermite basis, applied to the Fokker-Planck equation, is studied. It is shown that the Hermite based...
Johnson C. M. Fok, Benyu Guo, Tao Tang
MOC
2002
120views more  MOC 2002»
15 years 3 months ago
Analysis of iterative methods for saddle point problems: a unified approach
In this paper two classes of iterative methods for saddle point problems are considered: inexact Uzawa algorithms and a class of methods with symmetric preconditioners. In both cas...
Walter Zulehner
108
Voted
ICC
2007
IEEE
15 years 9 months ago
UWB Based Positioning in Multipath Channels: CRBs for AOA and for Hybrid TOA-AOA Based Methods
— In this paper we consider UWB (ultra wide band) based positioning. We derive the CRBs (Cramer Rao bound) for AOA (angle of arrival) and for hybrid method using both AOA and TOA...
Achraf Mallat, Jérôme Louveaux, Luc V...